County annual report · FIPS 36003
2021 Allegany County, NY Power Outage Report
In 2021, customers in Allegany County, NY went without power for an average of 3.7 hours, a total of 101K customer-hours (New York average 2.7 hours). That ranks 38th worst of 62 New York counties and 1626th of 2,974 nationally.
Compared with NY, the US and 2020
Coverage line is EAGLE-I's share of New York customers tracked each year.
Biggest outages in Allegany County, 2021
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | February 16, 2021 10:45 | February 16, 2021 12:30 | 1h 45m | 3,770 | 6,052 |
| 2 | July 21, 2021 01:15 | July 21, 2021 13:15 | 12h | 2,422 | 5,855 |
| 3 | April 25, 2021 09:30 | April 25, 2021 13:45 | 4h 15m | 1,977 | 3,177 |
| 4 | December 4, 2021 18:15 | December 4, 2021 18:45 | 30m | 1,518 | 759 |
| 5 | July 13, 2021 15:30 | July 15, 2021 16:45 | 2d 1h | 1,434 | 12K |
| 6 | October 31, 2021 17:30 | October 31, 2021 21:00 | 3h 30m | 1,092 | 1,450 |
| 7 | August 16, 2021 20:00 | August 17, 2021 01:00 | 5h | 1,009 | 2,089 |
| 8 | December 11, 2021 21:45 | December 14, 2021 03:30 | 2d 5h | 848 | 10K |
| 9 | June 9, 2021 18:30 | June 10, 2021 06:15 | 11h 45m | 844 | 3,444 |
| 10 | November 24, 2021 19:00 | November 24, 2021 23:15 | 4h 15m | 801 | 2,404 |
Outage episodes by size in 2021: 66 reached 100+ customers, 7 reached 1,000+ customers, 0 reached 10,000+ customers.
Utility reliability filed with the EIA
SAIDI (average outage time per customer) and SAIFI (average interruptions per customer) that utilities serving Allegany County reported on EIA Form 861 for 2021, or their most recent earlier filing. Utility-wide figures, not county-specific.
| Utility | EIA year | SAIDI | SAIFI | SAIDI excl. major events | SAIFI excl. major events |
|---|---|---|---|---|---|
| New York State Elec & Gas Corp | 2016 | 4.5 hrs | 1.56 | 3.6 hrs | 1.47 |
| Niagara Mohawk Power Corp. | 2021 | 3.7 hrs | 1.32 | 2.2 hrs | 1.12 |
| AVANGRID | - | - | - | - | - |
| Rochester Gas & Electric Corp | - | - | - | - | - |
| Village of Andover - (NY) | - | - | - | - | - |
| Village of Angelica - (NY) | - | - | - | - | - |
| Village of Wellsville - (NY) | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 99% of New York's customers in 2021; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 27,503 customers (ORNL modeled county customer count), including major storm days. It is comparable across counties but is not the SAIDI a utility files.
- An outage event is a continuous stretch with customers out; counts at 100, 1,000 and 10,000+ use its peak.
- Years loaded: 2015–2025. Allegany County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Allegany County, NY annual power outage report, 2021, data as of Oct 3, 2026 02:41 UTC, sources: DOE EAGLE-I (https://eagle-i.doe.gov/); EAGLE-I modeled customer counts (MCC) (https://figshare.com/); EIA Form 861 (utility reliability) (https://www.eia.gov/electricity/data/eia861/). https://massoutage.com/reports/2021/new-york/allegany-county